add "all" option for scanning all choicepoints

[rrq/nilfs2sss.git] / sss.sh

diff --git a/sss.sh b/sss.sh
index 1f253d3b5bcf0caba4dced57b4881589d1f31468..35b592530c5a7f48a71b47f32b342e937d15766a 100755 (executable)
--- a/sss.sh
+++ b/sss.sh
@@ -8,6 +8,11 @@
 #
 # The cron bot is expected to run once a minute
 
+# Name of snapshot tag file for "important" snapshots. Format:
+# $CNO .... one line for each $CNO that should be preserved as snapshot
+# chcp ss $CNO && echo $CNO >> $NAMELIST
+NAMELIST=/etc/nilfs2sss.list
+
 # The hour-of-day to preserve as daily snapshot
 KEEPHH=12
 
@@ -15,6 +20,8 @@ KEEPHH=12
 KEEPDD=15
 
 DEV=$1
+[ "$2" = "all" ] || LSCP="-s"
+
 if [ -z "$DEV" ] ; then
     DEVS=( $( mount | grep nilfs2 | sed 's/ .*//' ) )
     DEV=${DEVS[0]}
@@ -34,7 +41,11 @@ YEARLY="$(date -d '-1 year' '+%Y-%m-%d %H:%M:%S')"
 MARK=( )
 function marksnap() {
     if [[ "${MARK[0]}" == "$1" ]] && [[ "${MARK[1]}" = "$2" ]] ; then
-       chcp cp $DEV ${MARK[2]}
+       if [ -r "$NAMELIST" ] && grep -q ^$3 "$NAMELIST" ; then
+           : # Don't change important snapshots
+       else
+           chcp cp $DEV ${MARK[2]}
+       fi
     fi
     MARK=( "$1" "$2" "$3" )
 }
@@ -42,7 +53,7 @@ function marksnap() {
 { flock 9
 
   date "+$DEV: %Y-%m-%d %H:%M:%S ---- checking" >&2
-  lscp -s $DEV | while read CNO DATE TIME REST ; do
+  lscp $LSCP $DEV | while read CNO DATE TIME REST ; do
       TS="$DATE $TIME"
       [ "$CNO" = "CNO" ] && continue
       if [[ ! "$TS" > "$YEARLY" ]] ; then
@@ -57,7 +68,7 @@ function marksnap() {
       elif [[ ! "$TS" > "$HOURLY" ]] ; then
           marksnap HOUR "${DATE:8:2}-${TIME:0:2}" $CNO
       else
-         echo "$CNO $DATE $TIME within last hour"
+         : # echo "$CNO $DATE $TIME within last hour"
       fi
   done | if read X ; then
       : # snapshot within last hour